Self-Trapping of Slow Electrons in the Energy Domain

Maor Eldar, Zhaopin Chen, Yiming Pan, Michael Krüger

Research output: Contribution to journalArticlepeer-review


The interaction of light and swift electrons has enabled phase-coherent manipulation and acceleration of electron wave packets. Here, we investigate this interaction in a new regime where low-energy electrons (∼20-200 eV) interact with a phase-matched light field. Our analytical and one-dimensional numerical study shows that slow electrons are subject to strong confinement in the energy domain due to the nonvanishing curvature of the electron dispersion. The spectral trap is tunable and an appropriate choice of light field parameters can reduce the interaction dynamics to only two energy states. The capacity to trap electrons expands the scope of electron beam physics, free-electron quantum optics and quantum simulators.

Original languageEnglish
Article number035001
JournalPhysical Review Letters
Issue number3
StatePublished - 19 Jan 2024

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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